Home / 149,939.14-207,070.96-129,698.86

Finding the Fourth Proportional to 149,939.14, 207,070.96 and 129,698.86

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Solution

The fourth proportional to 149,939.14, 207,070.96 and 129,698.86 is: 179,118.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,939.14 : 207,070.96 = 129,698.86 : x
  2. Step 2: Convert to fraction form
    149,939.14/207,070.96 = 129,698.86/x
  3. Step 3: Cross multiply
    149,939.14x = 207,070.96 × 129,698.86
  4. Step 4: Simplify right side
    149,939.14x = 26,856,867,451.11
  5. Step 5: Solve for x
    x = 26,856,867,451.11/149,939.14
  6. Step 6: Final answer
    x = 179,118.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.